Shuttle-check for looms.



No. 663,89. Patented Dec. 4, I900.

W. W. TUBBY 8|. W. H. BROOMHEAD.

SHUTTLE CHECK FDR LOOMS. I (Application filed. May 21, 19.00.)

2 Sheat-Sheet I.

(No Model.)

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No. 663,l39. P atented Dec. 4, I900. w. w. TUBBY & w. H. BROUMHEAD.SHUTTLE CHECK FUR LOOMS.

(Application flle'd May 21, 1900.} ,(No Model.) 2 SheetsSheet42.

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witnesses.

M 1+ @LJOQMM (5 MW Q QLL aer I Attorney NITED STATES ATENT FFIC-E.

WALTER WM. TUBBY AND WILLIAM H. BROOMHEAD, OF FALL RIVER, MASSACHUSETTS,ASSIGNORS OF ONE-HALF TO LEONTINE LINCOLN,

OF SAME PLACE.

SHUTTLE-CHECK FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No, 663,139, dated December4, 1900.

Application filed May 21, 1900.

To all whom, it 11mg concern:

Be it known that we, WALTER WM. TUBBY and WILLIA H. BROOMHEAD, citizensof the United States, residing at Fall River, in the county of Bristoland State of Massachusetts,

, proved adjustable binder or swell. Fig. 2 is a plan showing theshuttle box with top removed, the shuttle being way home and there heldby the binder, finger, and check-strap. Fig. 3 is a rear elevation ofshuttle-box and lay-sword and shows the relations between the binder,check-strap, and lay-sword. Fig. 4 is a plan showing the arrangement oftwo shuttle-boxes, such as in Fig. 1, on the lay of a loom, the middleportion of which is broken out. Fig. 5 is a rear elevation of Fig. 4,showing also the picker-stick and means for operating the same. Fig. 6is a perspective view of a flexible hinge. Fig. 7 is a like view of anadjustable clip-washer.

Heretofore swells or binders for shuttleboxes have been hinged near theouter or picker-stick ends of the boxes and the binderfaces have been soshort and so much inclined to the direction of the incoming shuttlesthat whenever any of the latter strikes a binderface the shuttle issuddenly and violently checked and thrown out of its otherwiseunobstructed course and against the opposite side of the box and almostimmediately stopped. This check and consequent shock to the shuttle isdue to the resistance offered to the said shuttle by the binder and itspivot, the latter of which relatively to the shuttle almost forms adead-center. The shuttle, however, is carried along the binderface untilits remaining energy is overcome by the side pressure of the binder.This constantly-repeated driving of the incoming shuttle against thebinders binder-face soon so gouges the latter that the binder becomesuseless and has to be replaced by another, which soon follows the courseof'the preceding one; further, the shock islikely not only to throw offthe filling-yarn, but also to break it, hence Serial No. 17,397. (Nomodel.)

destruction of material in manufacture and of parts of the machine andloss of speed in manufacture. Our invention removes these objections byproviding means whereby the incoming shuttle may have a straighttraverse throughout its course, comes gradually to a state of rest ineach box, and after the beginning of each pick is speedily freed fromthe resistance ofiered by the binder to the delivery of the shuttle tothe other box. There being no binder pivots or hinges having almostdead-centers, as heretofore, to resist the motive power of the incomingshuttle much less power need be imparted to the shuttle, and there areno sudden checks to produce injurious effects on the yarn, shuttle, andloom, and movements of shuttles cause much less noise.

In the drawings illustrating the principle of our invention and the bestmode now known to us of applying that principle, Ais a shuttleboxconsisting of the usual race-plate (1, boxback 01', and box-front (1together with my improved adjustable binder or swell H, which like otherbinders closes a portion of the rear of the shuttle-box. The twoopposite sides of the entry-way of the shuttle-box formed by the frontbox-face d and the inner box-face d are parallel with each other andalso with the course pursued by the shuttle I in its passage from box Ato box A; but farther in beyond the inner box-face 01 this parallelismceases, the binder-face h h of the binder H becoming slightly inclinedto and approaching the front box-face 01 Between the end h of thebinderface h h and the adjacent end of the inner box-face d is a smallspace 71?. This is to allow the binder H to approach the inner box 01 inorder to secure, by means to be described later, a proper adjustment ofsaid faces after the binder-face h h has been shaved off to even itssurface worn by the delivery and receipt of the shuttle I.

The hinge or pivot H on the binder is so located that any force of theshuttle operating on the binder-face h h of the binder H cannot beresolved into a thrust or drive against, as distinguished from a pullon, the pivot or hinge H. Hence we fix our hinge or pivot H at somepoint, for instance, on the lay-sword 1), adjacent to theinner box-faced", and as near as is practicable in the same plane as that of thebinder-face h h of the binder H. By this location of the pivot or hingeH the only substantial resistance offered by the binder H to theincoming shuttle is to its rotation about its hinge or pivot H as acenter.

The hinge or pivot which we prefer to use is made of some flexiblematerialsuch, for instance, as leather or sheet metal-so as to allow atthe hinge not only a rotary but also a slightlateral movement of thebinder. Such a hinge is shown in Fig. 6. It has a longitudinal slot 71which enables it and the binder H to be adjusted and secured together bya bolt 71 provided with an adjustable clip-washer 77, portions of whoseedges are bent overthe edges of the hinge H,thns forming a channel inwhich the hinge may, when necessary, be slid longitudinally and then besecured in adjustment desired. The hinge H ismade fast to the lay-swordd by a bolt h, for instance.

The movements given to the binder-face h h and their limitations areobtained by having on one side of the binder H, near its free end, theusual finger J, secured to the protection-rod], and on the other athimble or swell bolt K, fixed to the race-plate d, the finger J alwayspressing the binder H against either the shuttle I or the thimble J,thus keeping the binder-face h 7t either in action or readiness foraction on the shuttle I. To the free end of the binder a check-strap His fixed. It passes around outside the pickerstick and along the frontof the shuttle-box, where it connects with a runner L, attached to alike check-strap H on the opposite box A or at some fixed point, as onthe lay. From the foregoing it will be clear that the advancing shuttleI on coming in contact with the binder-face h h meets not a sharpincline, but one forming a long and easy bearing surface or entrance,and that when the angle formed by the intersection ofthe plane of thepath of the incoming shuttle with that containing the pivot of thebinder and, if possible, also the presser-face is less than a rightangle the pounding of the shuttle against what almost forms adead-center is obviated with all objections arising therefrom. While byincreasing the strength of the pressure of the finger J against thebinder H the shuttle I can be successfully stopped, we prefer to use thecheck-strap H in combination with the picker-stick F, without saidincrease in the finger-pressure. As the pickershuttle I, which thenstops.

stick F in its movement precedes the incoming shuttle I it is forcedback, takes up the slack of the check-strap H and thus draws in thebinder H still harder against the Consequently the operation of checkingthe shuttle is one which is free from sudden and objectionableinterruptions. To deliver the shuttle I to the other box A, it isimmediately freed from the'brake action of the check-strap H by the veryfirst movement of the picker-stick F, operated by means M. Further, thebrake action of thebinder H is very limited by reason of the fact thatthe points of contact, as h, between the binder-face and the shuttle areWell in the rear of the middle portion of the outgoing shuttle H, andhence only a small outward movement ofthe shuttle carries the latter bythe point of extreme pressure It on the binder-face h h, which substantially immediately stops, impeding the progress of the outgoingshuttle I.

As will appear from Figs. 4 and 5, a further description both ofshuttle-box A, its binder H 850., located near the opposite end of thelay, and operation thereof on the reciprocating shuttle I is hardlynecessary, except, perhaps, to say that while one delivers the shuttle Ithe'other receives it, and vice versa. In short, our invention does awaywith the old drive or thrust of the incoming shuttle against I thebinder and its pivot and secures an easy entrance of the shuttle intothe box. It brings about a speedy release of the shuttle from the gripof the binder. There is a consequent saving in motive power by removingunnecessary breakage forces, less wear and tear upon the loom, lessbreakage of yarn, less throwing off of filling-yarn from the shuttle,less noise, greater speed in the loom, and, last, a great saving inbinders by preventing their speedy destruction and loss by wearing.

It will be plain to all skilled in the art that various changes may bemade in the preferred construction above described without departurefrom our invention.

Having described our invention, what we claim is- 1. The combination, ina shuttle-box,of the box-front thereof, with a shuttle-binder having aswell on its inner face, the outer end of the binder being free tovibrate about its pivot or hinge at the inner end of the binder, saidpivot or hinge being of flexible material and having .a longitudinalslot therein whereby the binder can be adjusted endwise and secured tothe hinge by the use of a bolt; means to hold the binder in bindingcontact with the shuttle a check-strap, one of whose ends is attached tothe free end of the binder, while the other end of the strap is suitablyanchored; a picker stick; and means to operate the picker-stick.

2. In a loom, a box-front of a shuttle-box, a shuttle-binder,the outerend of which is free to vibrate about a pivot or hinge of flexiblematerial at the inner end of the binder; means to hold the binder inbinding contact with the shuttle; a check-strap, one of whose ends isattached to the free end of the binder, and

the other end of the strap being secured to a runner; a picker-stick,and means to operate the picker-stick; in combination with the followingbnt opposite parts; a box-front of a shuttle-box; a shuttle-binder, theouter end In testimony whereof We affix our signatures in presence oftwo witnesses.

WALTER WM. TUBBY. WILLIAM H. BROOMHEAD.

Witnesses:

ERNEST I. JACKSON, RICHARD P. BORDEN.

